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| 富氧; 富氧 (This plan involved increasing production rate of No.2 blast furnace by natural gas injection, oxygen enrichment, stove improvements, etc. 这项计划包括通过天然气喷吹、富氧和热风炉改造等提高2号高炉的利用系数。) | |||
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oxygen-enrichment : 11 phrases in 3 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Metallurgy | 9 |
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